Re: [modeller_usage] error: Py_InitModule4_64

On 2/9/15 4:07 AM, meier@lmb.uni-muenchen.de wrote: > ImportError: .../bin/modeller9.13/modlib/modeller/_my_rsr.so: undefined > symbol: Py_InitModule4_64

This means that you compiled the extension against a different Python version than the one you're trying to run it with. (If you use the mod9.13 script, it uses a built-in version of Python 2.3, so that's definitely not going to work unless you have a copy of the 2.3 headers on your system.)

Setting PYTHONPATH will probably just confuse things, since the modpy script does that already.

Ben Webb, Modeller Caretaker